The influence of initial elastic surface stresses on instrumented sharp indentation

dc.creator	Giannakopoulos, A. E.	en
dc.date.accessioned	2015-11-23T10:27:57Z
dc.date.available	2015-11-23T10:27:57Z
dc.date.issued	2003
dc.identifier	10.1115/1.1485756
dc.identifier.issn	0021-8936
dc.identifier.uri	http://hdl.handle.net/11615/27859
dc.description.abstract	The present work examines the influence of pre-existing, elastic surface stresses on instrumented sharp indentation. The surface is modeled as a homogeneous and isotropic elastoplastic solid in the context of linear elasticity and Mises plasticity with isotropic strain hardening and associative flow rule. Prior to indentation, a homogeneous, biaxial, elastic stress state may exist in the substrate. The influence of the initial elastic surface stresses on the force-depth response of instrumented sharp indentation tests, such as Vickers and Berkovich, was analyzed. The unique connection of the indentation loading response and the average initial stress is based on a relation of the stresses right under the indenter which holds universally for nearly incompressible materials.	en
dc.source	Journal of Applied Mechanics-Transactions of the Asme	en
dc.source.uri	<Go to ISI>://WOS:000186159500003
dc.subject	NANOINDENTATION	en
dc.subject	SOLIDS	en
dc.subject	Mechanics	en
dc.title	The influence of initial elastic surface stresses on instrumented sharp indentation	en
dc.type	journalArticle	en

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